化简:3(m+1)+4(m+1)(m-1)-7m(m-1) 快

已知m＞4,化简|m-4|+|7-2m|+|m×m-2m+1|-|m×m-2m-3| 化简,:3(m-1)^2+(m+2)(m^2-2m+4)-m(m^2+3m-3) 已知m>4,化简:|m-4|+|7-2m|+|m^2-2m+1|-|m^2-2m-3| 化简:3(m+1)+4(m+1)(m-1)-7m(m-1) 快 若m合适根号(3m+1)(2-m)=根号(3m+1)乘根号(2-m),化简|m-4|+|3m+1|+|m-2|. √(3m+1)(2-m)=√3m+1×√2-m成立时|m-4|√9m^2 6m+1+|m-2|化简 计算2m+6/m²-4m+4·1/m+3·（m-2)(m+3)/m+3 化简（m-1)(m+1)(m-1) 化简|m|+|m-1|+|m-2| 已知m-1/m=3,m不等于0,求m^2-1/m^2,m^3-1/m^3,m^4-1/m^4 [2m-1]²+5m[m-1]-[3m+1][3m-1] 化简 先化简再求值m^2(m+3)+2m(m^2-1)-(m^4+m^3-m^2)/1/3m其中m等于2013 3(m+1)平方-5(m+1)(m-1)+2m(m-1)化简,求值 当m=1/2时,求15m²-9-{-4m²+[5m-8m²-(2m²-m)+9m²]-3m} 化简：(m-1)+2(m²-3m)-(2-m+5m²) 3(m+1)^2+4(m+1)(m-1)-7m(m-1) m^2-3m+2/m-1·m^2-1/m^2-4 已知m+1/m=3,计算(m^4+m^2+1)/m^2的值